From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751253AbdFBJZG (ORCPT ); Fri, 2 Jun 2017 05:25:06 -0400 Received: from fllnx210.ext.ti.com ([198.47.19.17]:38509 "EHLO fllnx210.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751124AbdFBJZD (ORCPT ); Fri, 2 Jun 2017 05:25:03 -0400 From: Keerthy To: CC: , , , , , , Subject: [PATCH v2] ARM: dts: AM43XX: Remove min and max voltage values for dcdc3 Date: Fri, 2 Jun 2017 14:54:01 +0530 Message-ID: <1496395441-29526-1-git-send-email-j-keerthy@ti.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org dcdc3 supplies to DDR on AM43x series. When we set both min and max values to the same value. The regulator framework sets that particular voltage. This is bad as we are changing the ddr voltage when executing from ddr. Hence remove the min and max values. The ddr supply voltage shall be set from bootloader when not executing from ddr and not while executing from kernel. The previous discussion can be found here: http://www.spinics.net/lists/devicetree/msg56399.html Signed-off-by: Keerthy --- Changes in v2: * Corrected $subject arch/arm/boot/dts/am437x-gp-evm.dts | 2 -- arch/arm/boot/dts/am437x-sk-evm.dts | 2 -- arch/arm/boot/dts/am43x-epos-evm.dts | 2 -- 3 files changed, 6 deletions(-) diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts index 397e98b..29a538e 100644 --- a/arch/arm/boot/dts/am437x-gp-evm.dts +++ b/arch/arm/boot/dts/am437x-gp-evm.dts @@ -549,8 +549,6 @@ dcdc3: regulator-dcdc3 { regulator-name = "vdcdc3"; - regulator-min-microvolt = <1500000>; - regulator-max-microvolt = <1500000>; regulator-boot-on; regulator-always-on; regulator-state-mem { diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts index a62e158..2c6bf06 100644 --- a/arch/arm/boot/dts/am437x-sk-evm.dts +++ b/arch/arm/boot/dts/am437x-sk-evm.dts @@ -451,8 +451,6 @@ dcdc3: regulator-dcdc3 { regulator-name = "vdds_ddr"; - regulator-min-microvolt = <1500000>; - regulator-max-microvolt = <1500000>; regulator-boot-on; regulator-always-on; regulator-state-mem { diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts index f6648ab..54f40f3 100644 --- a/arch/arm/boot/dts/am43x-epos-evm.dts +++ b/arch/arm/boot/dts/am43x-epos-evm.dts @@ -442,8 +442,6 @@ dcdc3: regulator-dcdc3 { regulator-name = "vdcdc3"; - regulator-min-microvolt = <1500000>; - regulator-max-microvolt = <1500000>; regulator-boot-on; regulator-always-on; }; -- 1.9.1